Datamax E-Class Mark II Programmer's Manual page 313

Field Valid Inputs
1, 2, and 3
a
bbb
c
d
eee
0000 – 9998
ffff
gggg
Four-digit decimal
hhhh
data byte count.
Valid ASCII character
string followed by a
jj...j
termination
character.
Class Series 2 Programmer's Manual
Appendix S – RFID Overview
Operation to perform, where:
1 = Read (report to host)
2 = Write
3 = Write / Verify
Wnx RFID Hexadecimal Operation, where no "n" is an implied 1.
0 Not Used, should be 0
0 Not Used, should be 0
HF: Lock after write, where:
x = 0 – Use printer setup to determine if lock is performed.
x = 1 – Lock after write.
yy = Not Used
UHF EPC Gen2: Lock after write, where:
xyy
x = 0 – Use printer setup to determine if lock is performed.
x = 1 – Lock after write.
yy = Lock state where "01"is for permalock, "10" for pwd-
UHF other tag types: Not Used, should be 000
HF: Starting block number to write.
UHF EPC Gen2: Block address where "0001" is EPC data, "0002"
is Tag ID or "0003" is user memory. Using "0000" is for EPC
data also (for backwards compatibility).
UHF other tag types: Not Used, should be 0000
HF: Not Used, should be 0000
UHF EPC Gen2: Data word offset – currently only used for read
0000
operation
UHF other tag types: Not Used, should be 0000
Number of bytes to follow (to include all bytes that follow until
the end of the data).
UHF data length must be 8 or 12 for EPC, 8 for Tag ID or

multiples of 2 for user memory sections.
Data to write to the tag.
UHF data length must be 8 or 12 for EPC, 8 for Tag ID or

multiples of 2 for user memory sections.
Meaning
write lock or "11" for both states
301